diff --git a/.github/workflows/env.sh b/.github/workflows/env.sh
index d1bc412399..acdbc5da1e 100755
--- a/.github/workflows/env.sh
+++ b/.github/workflows/env.sh
@@ -42,6 +42,7 @@ EOF
   tsan)
     cat <<EOF >> "$GITHUB_ENV"
 TSAN_OPTIONS=log_path=$GITHUB_WORKSPACE/build/log/tsan
+CLANG_SANITIZER=TSAN
 EOF
     ;;
   lint)